The drone flew with more sensors, new spoilers and a horizontal propeller stopping system to help it better land after the crash in December. It was in the air for an hour and 46 minutes and elevated 3,000 feet (910 meters).

The drone flew with the engineering team watching a live stream from a helicopter chasing the drone, said Martin Luis Gomez, Facebook's director of aeronautical platforms.

"We successfully gathered a lot of data to help us optimize Aquila's efficiency," Zuckerberg said. "No one has ever built an unmanned airplane that will fly for months at a time, so we need to tune every detail to get this right."